nushell/crates/nu-command/src/env/config/config_env.rs
Daniel Buch Hansen 850ecf648a
Protocol: debug_assert!() Span to reflect a valid slice (#6806)
Also enforce this by #[non_exhaustive] span such that going forward we
cannot, in debug builds (1), construct invalid spans.

The motivation for this stems from #6431 where I've seen crashes due to
invalid slice indexing.

My hope is this will mitigate such senarios

1. https://github.com/nushell/nushell/pull/6431#issuecomment-1278147241

# Description

(description of your pull request here)

# Tests

Make sure you've done the following:

- [ ] Add tests that cover your changes, either in the command examples,
the crate/tests folder, or in the /tests folder.
- [ ] Try to think about corner cases and various ways how your changes
could break. Cover them with tests.
- [ ] If adding tests is not possible, please document in the PR body a
minimal example with steps on how to reproduce so one can verify your
change works.

Make sure you've run and fixed any issues with these commands:

- [x] `cargo fmt --all -- --check` to check standard code formatting
(`cargo fmt --all` applies these changes)
- [ ] `cargo clippy --workspace --features=extra -- -D warnings -D
clippy::unwrap_used -A clippy::needless_collect` to check that you're
using the standard code style
- [ ] `cargo test --workspace --features=extra` to check that all the
tests pass

# Documentation

- [ ] If your PR touches a user-facing nushell feature then make sure
that there is an entry in the documentation
(https://github.com/nushell/nushell.github.io) for the feature, and
update it if necessary.
2022-12-03 11:44:12 +02:00

82 lines
2.1 KiB
Rust

use nu_engine::env_to_strings;
use nu_protocol::{
ast::Call,
engine::{Command, EngineState, Stack},
Category, Example, PipelineData, ShellError, Signature, Span, Spanned,
};
use crate::ExternalCommand;
use super::utils::get_editor;
#[derive(Clone)]
pub struct ConfigEnv;
impl Command for ConfigEnv {
fn name(&self) -> &str {
"config env"
}
fn signature(&self) -> Signature {
Signature::build(self.name()).category(Category::Env)
}
fn usage(&self) -> &str {
"Edit nu environment configurations"
}
fn examples(&self) -> Vec<Example> {
vec![Example {
description: "allow user to open and update nu env",
example: "config env",
result: None,
}]
}
fn run(
&self,
engine_state: &EngineState,
stack: &mut Stack,
call: &Call,
input: PipelineData,
) -> Result<nu_protocol::PipelineData, nu_protocol::ShellError> {
let env_vars_str = env_to_strings(engine_state, stack)?;
let mut config_path = match nu_path::config_dir() {
Some(path) => path,
None => {
return Err(ShellError::GenericError(
"Could not find nu env path".to_string(),
"Could not find nu env path".to_string(),
None,
None,
Vec::new(),
));
}
};
config_path.push("nushell");
let mut nu_config = config_path.clone();
nu_config.push("env.nu");
let name = Spanned {
item: get_editor(engine_state, stack)?,
span: call.head,
};
let args = vec![Spanned {
item: nu_config.to_string_lossy().to_string(),
span: Span::unknown(),
}];
let command = ExternalCommand {
name,
args,
arg_keep_raw: vec![false],
redirect_stdout: false,
redirect_stderr: false,
env_vars: env_vars_str,
trim_end_newline: false,
};
command.run_with_input(engine_state, stack, input, true)
}
}